Home / 78,732,115.40-118,098,173.10-62,470,020.80

Finding the Fourth Proportional to 78,732,115.40, 118,098,173.10 and 62,470,020.80

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Solution

The fourth proportional to 78,732,115.40, 118,098,173.10 and 62,470,020.80 is: 93,705,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,115.40 : 118,098,173.10 = 62,470,020.80 : x
  2. Step 2: Convert to fraction form
    78,732,115.40/118,098,173.10 = 62,470,020.80/x
  3. Step 3: Cross multiply
    78,732,115.40x = 118,098,173.10 × 62,470,020.80
  4. Step 4: Simplify right side
    78,732,115.40x = 7,377,595,329,999,000
  5. Step 5: Solve for x
    x = 7,377,595,329,999,000/78,732,115.40
  6. Step 6: Final answer
    x = 93,705,031.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.